[Hormonal regulation of the menstrual cycle (author's transl)].
The menstrual cycle is regulated by a complex hormonal system with positive and negative feedback mechanisms and changes in sensitivity of peripheral tissues. Four concepts appear to be fundamental: -- regular, pulsatile secretion of LHR is necessary to the functioning of the system; -- regulation is to a great extent effected by the pituitary gland in response to changes in ovarian steroid levels; -- changes in ovarian steroid levels are due to regulatory changes in receptivity to pituitary hormones, as well as to variations in enzyme activities; -- at the periphery, changes in hormonal impacts are accompanied by modifications of receptivity to steroid hormones.
D004967:Estrogens / Q000378:metabolism; D005260:Female; D005640:Follicle Stimulating Hormone / Q000378:metabolism / Q000502:physiology; D012739:Gonadal Steroid Hormones / Q000502:physiology*; D007987:Gonadotropin-Releasing Hormone / Q000502:physiology; D006801:Humans; D007986:Luteinizing Hormone / Q000378:metabolism / Q000502:physiology; D008598:Menstruation
D004967:Estrogens; D012739:Gonadal Steroid Hormones; D007987:Gonadotropin-Releasing Hormone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone
Régulation hormonale du cycle menstruel.